Search for long-lived charged particles using large specific ionisation loss and time of flight in 140 fb-1 of pp collisions at root s=13 TeV with the ATLAS detector
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00388207" target="_blank" >RIV/68407700:21220/25:00388207 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68407700:21240/25:00388207 RIV/68407700:21340/25:00388207 RIV/68407700:21670/25:00388207
Výsledek na webu
<a href="https://doi.org/10.1007/JHEP07(2025)140" target="_blank" >https://doi.org/10.1007/JHEP07(2025)140</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP07(2025)140" target="_blank" >10.1007/JHEP07(2025)140</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Search for long-lived charged particles using large specific ionisation loss and time of flight in 140 fb-1 of pp collisions at root s=13 TeV with the ATLAS detector
Popis výsledku v původním jazyce
This paper presents a search for massive, charged, long-lived particles with the ATLAS detector at the Large Hadron Collider using an integrated luminosity of 140 fb(-1) of proton-proton collisions at root s = 13 TeV. These particles are expected to move significantly slower than the speed of light. In this paper, two signal regions provide complementary sensitivity. In one region, events are selected with at least one charged-particle track with high transverse momentum, large specific ionisation measured in the pixel detector, and time of flight to the hadronic calorimeter inconsistent with the speed of light. In the other region, events are selected with at least two tracks of opposite charge which both have a high transverse momentum and an anomalously large specific ionisation. The search is sensitive to particles with lifetimes greater than about 3 ns with masses ranging from 200 GeV to 3 TeV. The results are interpreted to set constraints on the supersymmetric pair production of long-lived R-hadrons, charginos and staus, with mass limits extending beyond those from previous searches in broad ranges of lifetime.
Název v anglickém jazyce
Search for long-lived charged particles using large specific ionisation loss and time of flight in 140 fb-1 of pp collisions at root s=13 TeV with the ATLAS detector
Popis výsledku anglicky
This paper presents a search for massive, charged, long-lived particles with the ATLAS detector at the Large Hadron Collider using an integrated luminosity of 140 fb(-1) of proton-proton collisions at root s = 13 TeV. These particles are expected to move significantly slower than the speed of light. In this paper, two signal regions provide complementary sensitivity. In one region, events are selected with at least one charged-particle track with high transverse momentum, large specific ionisation measured in the pixel detector, and time of flight to the hadronic calorimeter inconsistent with the speed of light. In the other region, events are selected with at least two tracks of opposite charge which both have a high transverse momentum and an anomalously large specific ionisation. The search is sensitive to particles with lifetimes greater than about 3 ns with masses ranging from 200 GeV to 3 TeV. The results are interpreted to set constraints on the supersymmetric pair production of long-lived R-hadrons, charginos and staus, with mass limits extending beyond those from previous searches in broad ranges of lifetime.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10303 - Particles and field physics
Návaznosti výsledku
Projekt
<a href="/cs/project/EH22_008%2F0004632" target="_blank" >EH22_008/0004632: Výzkum základních stavebních kamenů hmoty s využitím špičkových technologií</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Svazek periodika
2025
Číslo periodika v rámci svazku
7
Stát vydavatele periodika
IT - Italská republika
Počet stran výsledku
58
Strana od-do
—
Kód UT WoS článku
001535021000001
EID výsledku v databázi Scopus
2-s2.0-105021186556